Marsupial frog with eggs inside (Gastrotheca riobambae)

(ENG) Gastrotheca riobambae, the Andean marsupial frog, has an interesting strategy: the mother inserts the impregnated eggs in a special bag under the skin of her back (you can appreciate the bulges in this picture). The eggs develop to tadpoles inside and when it’s the right time, the mother gives birth to the tadpoles. This way her offspring is safe during the first stages of their life cycle.